gday all
i have posted this on another website's form but i would like to get some feedback here also.
i am about to start my home studio acoustic treatment...
(all measurements in mm)
i have a 3300 wide x 3700 long x 2700 high room with plasterboard walls. my room will be used for tracking synths, vocals and guitars as well as mixing. no drums will be tracked in this room.
my listening position is 700 (i.e. 38%) away from front wall. my speakers are 400 away from front wall, 1200 from the floor and spaced 1600 apart (which is dictated by the desk they sit on)
i have heaps of 48kg/m3 rigid fibreglass (unfaced on both sides) in 50 thick sheets.
i have also built heaps of 1200 x 600 x 50 and 1200 x 600 x 100 frames out of external angle (used for plasterboard partitions) to house the rigid fibreglass. i will be wrapping the frames / rigid fibreglass in white muslin.
after extensive research on the internet, i have come up with the following arrangement for acoustic treatment to my room (refer below).
yellow : 1200 x 600 x 50 (mid / high frequency absorber) - spaced 50 off surface mounted to
blue : 1200 x 600 x 100 (bass trap - placed at internal corners)
purple : 600 diagonal face superchunk spanning from floor to ceiling (bass trap with greater low end absorption)
the drawing is to scale 1:20 and is a plan view. the speaker positions and seating position is marked with a "+"
3 off super chunks (with 600 diagonal face) will be installed from floor to ceiling in the "wall to wall" corners. because i have a door on the LHS of back wall (not shown on drawing), i will be using 1 off 1200 x 600 x 100 bass trap at mid height (mounted on a stand so that it can be easily moved) and 2 off 600 x 600 x 100 "tri-corner" bass traps (1 permanently mounted at ceiling height and 1 loose at floor level that can be easily moved).
2 off "ceiling to wall" 1200 x 600 x 100 bass traps will be used on each wall.
2 off 1200 x 600 x 50 mid / high frequency absorbers will be joint together to make a "ceiling cloud". 2 off ceiling clouds will be used in total (1 towards the front of room and 1 towards the back of room). i have actually drawn these slightly wrong - they shouldnt clash with the "ceiling to wall" bass traps on the front and back walls (i.e. the "ceiling clouds" should be positioned closer to the middle of the room). oops
2 off 1200 x 600 x 50 mid / high frequency absorbers will be used on front wall mounted at mid height. the LHS one of these will be mobile as I have a window on this side of the room (not shown on drawing)
3 off 1200 x 600 x 50 mid / high frequency absorbers will be used on back wall mounted at mid height on stands so that they can be moved (as cupboard is behind - not shown on drawing). i have chosen to use 3 heare as the singer will be facing this wall when tracking vocals. i can always remove 1 of these absorbers when mixing if required.
each side wall will have 3 off 1200 x 600 x 50 mid / high frequency absorbers. 2 of these will be joint together and placed toward front of room with the remaining one placed toward back of room.
i will also use a piece of 50 thick rigid fibreglass below each speaker in an attempt to decouple (or absorb sound) passing into the bench it sits on.
i will also build a box out of 50 thick rigid fibreglass to sit over the computer (positioned in RHS corner along front wall) when i am tracking with a microphone to further minimise fan noise.
as suggested on another forum, i am looking to line the outside face of the bass traps and superchunks with paper to reflect hi frequencies back into the room. the paper will lie under the muslin. obviously, i wont face the high frequency absorbors with paper. is normal paper OK to use?
do you have any comments / recommendations on this setup before i start? do you think my room will be too dead as i am using mid / high frequency absorption rather than diffusion???
cant wait to get into it!